ok, 299k and i've tinkered with the FIV, FITV, IACV, idle screw, cleaned and flushed my radiator, checked for vacuum leaks. everything that i can think of and my car's idle is still oscillating from about 900-1500 rpm. it will rev up and drop, rev up and drop, rev up and drop. it's driving me insane. should i just set my idle up slightly, and unplug my iacv valve? i'm honestly going to get rid of this thing if i can't fix it soon, i can't stand it.
it also dies sometimes. like, i will be driving in 2nd or 3rd, sometimes even 4th, and it will lug and lose power, and unless i floor it, or clutch and rev it, it will continue to lose even more power till it backfires, then it will go on like nothing happened. what's wrong with it?
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